I don't think that it's "playing tight" on the center. I think it's because in Coach Lowery's defensive scheme the center has to hedge and recover against the pick and roll. From my vantage point -- admittedly high in Section 218 -- our guards are too passive when reaching opposing picks at the top. They simply stop, instead of fighting over or under those screens (depending upon the ability of the player with the ball to hit a three), which creates the brutal mismatches with Reid, West or Clayton that we've seen all season down low... A guy like Audige, a strong defender, wouldn't allow guys to simply run him into a screen creating a switch/mismatch. It's clearly been a large learning curve defensively for this young/new team.